My rabbit's been malting a lot more recently and today I brought him in from his run and put him down in the porch to clean his feed off and i found three areas of very thin fur, like bald patches; one to the left of his nose, a centimetre below his eye and two over both shoulder blades, the left being the worst. There seems to be no change in his behaviour or appetite. I did notice that him scratching with his back leg the patch on his face. If it matters, he recently got neutered, maybe a month ago (it's not long enough for the stitches to have fully dissolved) but I'm not sure and vaccinated against myximatosis and I changed his diet to a different pellet a few days ago. Should i worry? Should i visit the vets? He has had other problems, they were : conjunctivitis, fur mites, blocked tear ducts and a blocked bowel. All are better now, though. Oh, and if i gently take bits of fur between my fingers and lightly pull, some fur comes of in my hands.